Universiteit Leiden

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Frans Sonneveldt

Professor of (International) Estate Planning

Prof.dr. F. Sonneveldt
+31 71 527 2727

Prof. Dr. Sonneveldt is related to the Institute for Private Law since the 1st of September 2007.

More information about Frans Sonneveldt

Prof. dr. Frans Sonneveldt is a partner in the firm Mazars Private Clients Tax Consultants in the Netherlands, The Hague.

He is a professor at Leiden University (department of notarial law) and a lecturer in the International Tax Program at that university. He was a member of the Moltmaker Committee engaged in the preparation of a report on the revision of the Dutch Inheritance Tax Act 1956. He is also a deputy-judge at the Court of Appeals at ‘s-Hertogenbosch.

Mr. Sonneveldt was a panelist of a seminar on international estate planning during the 2002 Oslo Congress of International Fiscal Association (IFA), he chaired a seminar on this subject for IFA in Vienna in September 2004 and he was the chair of subject 2 (‘death as a taxable event and its international ramifications’) at the IFA Congress 2010 in Rome.

Mr. Sonneveldt is a member of the International Academy of Estate and Trust Law (IAETL) and the Society of Trust and Estate Practitioners (STEP). He was a visiting Scholar at Harvard Law School and a guest lecturer at Queens’ College Cambridge, New York University and the University of Neuchâtel, Switzerland. He is also a lecturer at the Executive Master Program of Advanced Studies in International Taxation at the University of Lausanne, Switzerland. Since 2014 he is a Member of the ‘group of experts on removing tax problems facing individuals who are active across borders within the EU’ at the European Commission.

Professional authorities

  • Anglo-American Trust and other trust like devices.
  • Estate Planning including legal and tax advice on last wills, prenuptial agreements, divorces, gifts, emigration and immigration.

Professor of (International) Estate Planning

  • Faculteit Rechtsgeleerdheid
  • Instituut voor Privaatrecht
  • Notarieel Recht

Work address

Kamerlingh Onnes Building
Steenschuur 25
2311 ES Leiden
Room number C2.17



  • Mazars Bewind & Executele B.V. Bestuurder
  • Hof 's-Hertogenbosch Raadsheer plaatsvervanger
  • Universiteit Leiden Lecturer International Tax Program
  • Stichting Administratiekantoor De Jonge Beleggers Bestuurder
  • Stichting Administratiekantoor Curpohold Bestuurder
  • Stichting Masterly The Hague Lid van Comité van Aanbeveling
  • Stichting NLFiscaal Annotator
  • Stichting Internationaal Juridisch Instituut Bestuurder
  • Sebastiaan Genootschap Voorzitter Bestuur
  • Universiteit Lausanne Docent Executive Master Program of Advanced Studies in International Taxation
  • Genootschap van Estate Planners Voorzitter Bestuur
  • Vereniging van Estate Planners in het Notariaat (EPN) Lid van Wetenschappelijk Advies Raad (WAR)
  • Cornelis Kruseman-Jozina Maria Cornelia Ising Stichting Voorzitter van het Bestuur
  • EPN Buitengewoon lid
  • European Association of Tax Law Professors (EATLP) Member
  • Fiscaal Bureau voor Het Notariaat (FBN) Redacteur
  • NDFR Successierecht en overdrachtsbelasting Redactielid
  • Nederlands Tijdschrift voor Fiscaal Recht lid van de Redactieraad
  • New York University Practice Council
  • Society of Trust and Estate Practitioners (STEP) Lid
  • Stichting Instituut voor Nationale en Internationale Estate Planning, verbonden met de UU lid Raad van Advies
  • The International Academy of Estate and Trust Law (San Francisco, CA) Academician
  • Weekblad voor Privaatrecht Notariaat en Registratie (WPNR) Vaste medewerker
  • Grotius Academie hoofddocent Estate Planning
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